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运动生理学认为,在进行运动训练时要求机体承受较大的负荷,这种负荷必然会使机体产生适应性与功能性的变化,而其中以心血管系统的变化意义为最大。经研究证实,体育锻炼影响血管的结构,改变血管在器官内的分布,能反射性地引起冠状动脉扩张,心肌的毛细血管数量增加。我们的学生基本在13~15岁之间,该段学生心血管系统尚在发育之中,心肌多项功能发育尚待完善,适量的、科学的运动训练可以起到上面所说的作用,但面对心肌发育不全的青少年,盲
Exercise physiology that in the exercise training requires the body to withstand a greater load, the load will inevitably make the body produce adaptive and functional changes, of which the cardiovascular system changes the meaning of the largest. The study confirmed that physical exercise affect the structure of blood vessels, vascular changes in the distribution within the organ, can cause coronary dilation reflex, the number of myocardial capillaries increased. Our students are basically in the 13 to 15 years old, this section of students cardiovascular system is still under development, a number of functional development of the heart muscle to be perfect, the amount of scientific training can play the role of exercise, but Faced with hypoplasia of adolescents, blind